Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 20 users online :: 5 registered, 0 hidden and 15 guests


Most users ever online was 106 on Sat Jun 14, 2014 4:35 pm

Registered users: Bing [Bot], Google [Bot], jimmy101, Majestic-12 [Bot], mkj based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Blue Blaster

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Blue Blaster

Unread postAuthor: BigGrib » Wed Oct 31, 2007 6:22 pm

Here is my newest incarnation of spudding mayhem. Used my same formula of 4" x 24" ABS down to a 2" fitting. I got an aluminum camlock deal for the interchangable barrels, and the aluminum were cheaper than the poly cam locks.

The ignition is a 12k volt 1.5VDC powered BBQ ignitor that has two pair of contacts going to the two spark gaps. A threaded steel schrader valve for the propane injection right in front of the 80MM chamber fan. The Valve in the back is a 1" Ball Valve that attaches to a close gap steel nipple that comes in from the other side of the cap.

The handles are 4" caribeaners from Harbor Frieght.


BigGrib

EDIT New Damage Picture
  • 0

Attachments
Barrels.JPG
Barrels
Chamber RearValve.JPG
Valve
Chamber RearValve.JPG (33.64 KiB) Viewed 2173 times
Chamber ForeGrip.JPG
Fore Grip
Chamber ForeGrip.JPG (37.05 KiB) Viewed 2173 times
Chamber Fan Lit.JPG
Lit up Fan
Chamber Fan Lit.JPG (33.64 KiB) Viewed 2173 times
Chamber Ignitor.JPG
Ignitor
Chamber Ignitor.JPG (34.92 KiB) Viewed 2173 times
Chamber.JPG
Chamber
Chamber.JPG (30.65 KiB) Viewed 2174 times
Damage 01.jpg
Damage Pic
Damage 01.jpg (10.9 KiB) Viewed 1891 times
Last edited by BigGrib on Sat Nov 10, 2007 8:30 pm, edited 5 times in total.
Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: BC Pneumatics » Wed Oct 31, 2007 6:42 pm

Watch that modded end cap. Not only does that large hole make the weakest part of your cannon even weaker, it is way to thin to safely hold a threaded part.
I suggest you replace it with a PW plug, or at least fill the cavity with epoxy.
  • 0

<a href="http://www.bcarms.com/"><img src="http://www.bcarms.com/images/store_logo.png" border="0"> </a>
User avatar
BC Pneumatics
Donating Member
Donating Member
 
Posts: 1089
Joined: Tue Jan 18, 2005 6:55 pm
Location: Fresno, CA
Reputation: 0

Unread postAuthor: BigGrib » Wed Oct 31, 2007 6:46 pm

I did fill the end cap with epoxy, completley slipped my mind to mention that, and i never took a picture of it, but yeah i definatley went about that part safely
  • 0

Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: BC Pneumatics » Wed Oct 31, 2007 6:53 pm

In that case, excellent looking cannon :)
  • 0

<a href="http://www.bcarms.com/"><img src="http://www.bcarms.com/images/store_logo.png" border="0"> </a>
User avatar
BC Pneumatics
Donating Member
Donating Member
 
Posts: 1089
Joined: Tue Jan 18, 2005 6:55 pm
Location: Fresno, CA
Reputation: 0

Unread postAuthor: th3p0p0 » Wed Oct 31, 2007 8:18 pm

very nice i like the fan it makes it look "bad ass". that paint job is pretty sick to.
  • 0

User avatar
th3p0p0
Sergeant Major
Sergeant Major
 
Posts: 194
Joined: Tue Oct 31, 2006 12:34 pm
Reputation: 0

Unread postAuthor: homedepotpro » Wed Oct 31, 2007 9:00 pm

beauty, only thing i can say is cover your electrical leads so you don't get shocked
  • 0

Image
User avatar
homedepotpro
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 443
Joined: Sun Nov 26, 2006 1:00 am
Reputation: 0

Unread postAuthor: iknowmy3tables » Wed Oct 31, 2007 9:54 pm

nice electric bbq igniter I need to find one of those

uhm with they way you setup those camlocks can you beechload
  • 0


iknowmy3tables
Major General
Major General
 
Posts: 1549
Joined: Fri Dec 15, 2006 3:57 pm
Location: maryland
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Killjoy » Thu Nov 01, 2007 12:17 am

Looks nice, to bad the chamber isn't clear so you can see the LED fan. The grip looks good too.
  • 0

Stanford Class of 2012

"In the end our society will be defined not only by what we create, but what we refuse to destroy"- John Sawhill

Killjoy
Brigadier General
Brigadier General
 
Posts: 1053
Joined: Sun Nov 12, 2006 12:51 am
Location: New Mexico
Reputation: 0

Unread postAuthor: BigGrib » Thu Nov 01, 2007 3:35 am

homedepotpro wrote:beauty, only thing i can say is cover your electrical leads so you don't get shocked


iknowmy3tables wrote:nice electric bbq igniter I need to find one of those

uhm with they way you setup those camlocks can you beechload


The leads aren't a big of a deal because I'm right handed so it sits on my right leg when I shoot and the leads are on the opposite side of the cannon. I like the exposed look of em too. Thanks for the comments on the gun, the paint is just blue Krylon Fusion, which is awesome stuff.

Unfortunatley with those cam locks the ID is smaller than the 2"ID spud barrel so you can't breech load a spud. The PVC GB Barrel is bolted on and the bolts act as a rollback stop but it is removed after each shot so that I can blow the chamber out quicker and the barrel can be reloaded easier since it's almost 7' long.....oh and that ignitor I got really lucky on getting. My neighbor had a BBQ with the battery powered ignitor on it (that one actually) and his wife was trying to cook on it and ended up burning down the whole thing, the only thing that survived was the ignitor box. Unfortunatley I haven't been able to find them in the stores but if you can find one, never let it go!!!! or try and get one on the charbroil or weber websites.

BigGrib

Edit---Here is the deal from Charbroil. 29.99 for the Electric Ignitor Kit all the stuff you need. SKU # 80008194 Go to this site and you can add it directly to your cart, just scroll down it is part number "V"

http://www.charbroil.com/CharBroilWarranty/ConsumerWebsite/ConsumerEcommercePartListings.aspx?ProductID=1020
  • 0

Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: psycix » Fri Nov 02, 2007 7:18 am

It is one hell of a nice cannon, but i got one thing to mention.

You should have placed your spark gaps further apart from eachother.
That will improve performance because so close spark gaps dont create multiple flame fronts since the 2 flamefronts melt together as one because of the closeness (<- is that a word? lol).
  • 0

User avatar
psycix
Donating Member
Donating Member
 
Posts: 3683
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: BigGrib » Sat Nov 03, 2007 1:12 am

Yeah not really a big deal with the 7' GB Barrel and the meter setup just right this thing will blast a golfball so damn fast that you cant see it leave the barrel or in flight, and I have been using any colored ball i can get my hand on and still nothing. Frankly I'm scared to try and shoot anything close up to give you guys some damage shots cause I'm scared of a ricochet that I can see. I am in the process of building a backstop
  • 0

Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: foothead » Sat Nov 10, 2007 12:14 pm

what did it cost to make that? it looks pretty awesome. I might have to build one like that for myself.
  • 0

User avatar
foothead
Private
Private
 
Posts: 7
Joined: Sat Nov 10, 2007 11:47 am
Reputation: 0

Unread postAuthor: BigGrib » Sat Nov 10, 2007 8:36 pm

Umm let me think for a second, The ignitor I got for free but would cost $30, the camlocks and GB Barrel purchased all together was $20, the Chamber Fan was $10, $20 for the Chamber, another $5 for the valve assembly on the rear, $2 for the handles $5 for all the hose clamps, and another $8 for all the uh wires and screws for the spark gaps and switch for the fan and 2 9V batteries. That feeling of shooting a golf ball through 1" Plywood...Priceless.

Right about $100
  • 0

Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Return to Combustion Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], jimmy101, Majestic-12 [Bot], mkj

Reputation System ©'